What does DDB stand for?

I'm asking this question because the Fiio cp15 is going to have a DDB chip, but what the heck is a DDB chip?

 

Digital Dynamic Booost? in the form of some dsp chip?

 

I'm confused. Is it a noise reduction system?

 

Firstly DDB is Fiio's own acronym not clearly , to my knowledge , expressed what it stands for , having said that DDB chip offers bass enhancment loudness compensation and analog sound shaping , it's not a noise reduction system and I believe it works on analog domain without digital processing so Dynamic Drive Bass as found in some translations from chinese language is the most probable to what DDB stands for.

 

I guess we will find out when more data is released.
The subject of Dolby regularly comes up. Because they are still active in surround sound etc the chanced of any other company launching a tape player with Dolby are about as high as a company calling their new player a Panasonic.

However, all the Dolby noise reduction patents have expired and the 1970s implementations were done with, still readily available, transistors etc. So you you add Dolby like functionality either that way of using a DSP, and call it DDB or if you were feeling particularly adventurous and had good lawyers Dolbi or similar.

 

Longman, I hope it has some form of noise reduction or at the very least has a very good signal to noise ratio, and near perfect wow and flutter. It has to be better than everything else currently on the market for me to buy it.

 

Fiio portable FM radio RR11 uses the DDB AS100 chip :

With the SoC MS430, FM radio SI4831, the analog sound effect, and amp using FIIO’s own DDB AS100 custom chip, the RR11 does not skimp on the internals.

Extracted from here :
https://headfonics.com/fiio-rr11-review

By the way nice radio and very thorough review on headfonics site.

 

I heard rumors that the Fiio cp15 might be the same as the cp13 just with the ability to record. I hope the rumors aren't true because then they are ripping people off.

 

The ability to record seems like a huge upgrade. I was wondering what that was like. If you buy a modern Walkman, you still need old junk to make your mixtapes. This makes it a nice all-in-one device. Assuming the recording quality is even remotely good.

 

Not really sure why people would be so triggered with recording options on a walkman. Even in the best years of cassette players, back in 80s and 90s, no portable device could match the recording with a proper deck (except a few super rare and expensive options). Now days you can buy serviced deck under 100$ (Yamaha, Pioneer, Technics, Sony etc) and get properly recorded cassette, and then really enjoy it on the walkman (either new or old). I am looking forward to FIIO new model as the CP13 was nothing more than average Chinese no-name cassette player except it has nice alu-body and rechargeable battery.